Leather-working machine.



No. 661,580. Patented Nov.;l'3,' l900.

E. HAYES.

LEATHER WORKING MACHINE.

. (Application filed Apr. "1, 1899.) (No Model.) 3Shoets-Sheet l.

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No. 66!,580. Patented Nov. I3, [900. E. HAYES.

LEATHER WORKING MACHINE.

(Application filed Apr. 4, 1899.) (No Model.) 3 Sheets-Sheet 2.

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LEATHER WORKING MACHINE.

(Application filed Apr. 4, 1899.) N o M o d at.

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NEED STATES PATEN QFF C EDWARD HAYES, OF IIYNN, MASSACHUSETTS, ASSIGNOR TO THE VAUGHN MACHINE COMPANY, OF PORTLAND, MAINE.

LEATHER-WORKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 661,580, dated November 13, 1900..

Application filed April 4, 1899. Serial No. 711,664. (No model.)

To all whom it may concern: which cooperates with a bed j, upon which Be it known that I, EDWARD HAYES, a eitithe leather rests while under the action of the zen of the United States, residing in Lynn, said tool. 7 in the county of Essex and State of Massa- The tool-carrier h is connected to the pen- 5 chusetts, have invented an Improvement in dulum, so as to move therewith and yet be Leather-VVorking Machines, of which the folfree to move independent thereof, so that as lowing description, in connection with the the pendulum movesin the are of a circle, accompanying drawings is a specification, with the pivot fas a center, the said carrier like characters on the drawings representing may move in a substantially straight path, as [0 like parts. will be described. This result is accom- This invention relates to leather-working plished, as herein shown, by acting on the machinesof thatclass in which the operatingtool-carrier by a cam groove or slot 2, (see tool is supported byapendulum, and has for Fig. 7,) preferably in side pieces or arms 3 6, one of itsobjects to obtain a uniform pressure firmly attached to the pendulum and into 15 upon the leather of the operating-tool throughwhich project rollers 7 on a stud or pin 8, ex-

outthelength of its stroke. For this purpose tended through the upper portion 9 of the the tool-carrier is loosely attached to the pentool-carrier h, which portion 9 is extended bedulum and is operated upon by a cam which tween said arms and connected therewith by is properly shaped to keep the tool in engagea pin 10, extended through a vertical slot 12 2o ment with the leather for the entire length or in the tool-carrier h, as shown in Fig. 2.

substantially the entire length of the stroke The pin 10 serves to connect the tool-carof said tool. rier h to the pendulum g, so that both will The invention further has for its object to oscillate or move in the direction of the length provide machines of the class described with of the bed j, and the slot 12 permits the tool- 25 a reversible bed-support and with, prefercarrier to be moved independent of the penably, a laterally-adjustable bed, as will be dedulum, so as to be held by the cam 2 with its scribed. I tool 2' in contact with the leather on the bedj These and other features of this invention while the said carrier is moved thelength or will be pointed out in the claims at the end substantially the length of the bed, which 30 of this specification. latter movement is effected, as shown, by a Figure 1 is a side elevation of a leatherconnecting-rod 13, pivotally attached to said working machine embodying this invention; carrier and to a pin 14 on the wheel 15, fast Figs; 2 and 3, details in elevation to be reon the shaft 16, having hearings in the upferred to, showing the operating-tool in difrights I) e. 3 5 ferent positions; Fig. 4, a cross-section on the The shaft 16 may be driven in any suitable line 4 4, Fig. 1, looking toward the left; Figs. manner, as by a belt 18, passed about a pulley 5 and 6, sectional details to be referred to, 19, fast thereon. As theshaft 16 and crankthe section being taken on the line 5 5, Fig. 1; wheel revolve in the direction indicated by Fig. 7, an enlarged detail to be referred to; arrow 20, Fig. 1, the pendulum and the tool- 40 Fig. 8, an end elevation of the machine shown carrier h are moved in the direction indicated in Fig. 1, and Figs. 9 to 12 details to show the by arrow 40, and during the forward or operaoperation of the cam on the tool-carrier. tive stroke of the tool-carrier the tool 6 is The framework of the machine herein shown moved in a straight path parallel with the comprises a base a, an inclined upright b, bedj fortheentirelengthor substantially the 5 5 and substantially vertical standards or upentire length of the forward stroke of said rights 0, d, and e, which may be of metal or tool, as represented in Figs. 1, 2, 3, and 9 to other suitablematerial and are attached to 12, inclusive. the base. i In Figs. 1 and 9 the tool is represented at The inclined upright 12 has pivoted to it at the beginning of its forward stroke, in Figs; I00 50 f a pendulum g, which supports a tool-car- 2 and 11 at the middle of said stroke, in rier h, provided with a glazing or other tool 11, Figs. 3 and 10 at the end of the forward stroke, and in Fig. 12 about the middle of the backward stroke. The cam 2 is properly shaped to efiect this result, which is desired in glazing-machines, as the operative stroke of the tool is lengthened and the pressure of the tool upon the leatheris uniform throughout the length of its forward stroke, thereby insuring uniform results in the work. Dur ing the return stroke of the operating-tool it is out of contact with the work, as in machines of this class as now commonly constructed. By changing the shape of the cam 2 the tool may be made to engage the leather at various portions of its forward stroke, andthe said cam is preferably shaped so as to gradually engage the leather at the beginning of its forward stroke. 4

I prefer to operate the tool-carrier by two cam-grooves, one on each side of said carrier; but one of said cam-grooves may be omitted.

Another feature of this invention consists in providing a reversible support for the bed The support referred to is herein shown as a bar 30, provided with journals 31, which extends through suitable slots 32 in the .uprights d and into bearings 33, movable vertically on upright screw-rods 34, provided, as shown, with hand-wheels 35, by which the rods 34 may be rotated to move the journalbearin gs 33 vertically, and thereby adjust the bed with relation to the tool 01. The slots 32 are made of suitable length to permit this movement. The support 30 has secured to its upper and lower sides cushions orsprings 41 42, which may and preferably will be leafspriugs and of different strength or stiifmess-that is, one spring, as 41, may be a light spring, which supports the bed j when light stock is being worked, and the other, as 42, may be a heavier or stiffer spring to support the bed j when heavier or thicker stock is to be worked. The springs 41 42 may be brought into operative position with relation to the bed by reversing the supporting-bar 30. This bar is normally locked against rotation, which may be effected, as shown, (see Fig. 4,) by means of a vertically-movable slide 43, forked at its upper end to engage the lower spring, (shown in Fig. 1 as the spring 42.) The locking-slide 43 is movable in suitable guides 44 and may be moved, as shown, by a I lever 45, provided with a slot 46, into which projects a pin 47 on said slide, and the said lever may be locked in its operative or elevated position in any suitable manner, as by a pin 48, inserted into a hole in one of the guides 44 below the lever, as shown in Fig. 4. When the slide 43 is in its elevated position, (shown in Fig. 1,) its forks embrace the lower spring 42 and lock the supporting-bar against rotation. If it is desired to reverse the support 30, lever is unlocked and moved down into its dotted-line position, Fig. 4, thus lowering the slide 43 and disengaging it from the spring 42. The bed j is then lifted or removed from the uprights cd and the support 30 turned until the spring 42 is in position to sustain the bed, after which the slide 43 is elevated to engage the spring 41 and lock the support 30. The bed j is preferably made laterally adjustable, which may be effected, as herein shown, by making the said bed in two parts 50 51 and providing the lower surface of the part 50 with a curved portion 52, which rests on the curved upper surface of the lower part 51, which latter is fitted into suitable guideways in the uprights c d and rests on the spring 41. The upper part 50 of the bed is laterally adjustable with relation to the lower part 51 and may be adjusted and secured in its adjusted position by set-screws 55 56, which engage the opposite sides of a lug 57, projecting from the underside of the upper part into a slot or opening 58 in the lower part. (See Figs. 5 and 6.) By adjustment of the screws 55 56 the upper part or bed proper, 50, may have its upper surface tilted or adjusted so as to compensate for any irregularity in the diameter of the glazing tool and also to provide for effectively operating on skins of uneven thickness. The bed proper may be provided in practice with a bolster of suitable material, such as now commonly used in machines of this class, and not herein shown.

I claim 1. In a machine of the class described, the.

ment in another direction independent of the V pendulum, and means to effect said independent movement of the tool-carrier,-substantially as described.

3. In a machine of the class described, the combination with a bed, of a tool-carrier pro vided with a tool cooperating therewith, a pendulum pivoted to a stationary or fixed support and movable in the arc of a circle in the direction of the length of the bed, means to loosely connect said tool-carrier with said pendulum to move in the direction of the length of the bed, and means to move said tool-carrier bodily in a different direction from that-in which the pendulum is moved, substantially as described.

4. In a machine of the class described, the combination with a stationary support, of a pendulum pivoted thereto to move in the arc of a circle, a tool-carrier connected to said pendulum to move with it and to move inde pendent thereof in the direction of the length of the pendulum, and means to effect said independent movement of the tool-carrier while moving with the said pendulum.

5. In a machine of the class described, the

combination with a stationary support, of a pendulum pivoted thereto, a tool-carrier connected to said pendulum, means to move said pendulum in the arc of acircle, and a cam to act on said tool-carrier and cause it to be moved in a substantially straight path, substantially as described.

6. In a machine of the class described, a bed composed of two parts, the lower surface of the upper part being concaved transversely for substantially its entire length, and the upper surface of the lower part being correspondingly curved, a lug or projection depending from the lower surface of the upper part intermediate of its sides and extended into a slot or opening formed in the lower part intermediate of its sides, and set-screws to engage said lug or projection, substantially as described.

7. In a machine of the class described, the combination with a bed to support the material, of a rotatable support for said bed, yielding means interposed between said bed and its support, and means to lock said rotatable support in its operative position, substantially as described.

8. In a machine of the class described, the combination with abed,of a rotatable support therefor having yielding means attached to opposite sides, and means to secure said support against rotation, substantially as described.

9. In a machine of the class described, the combination with a bed to support the material, of a vertically adjustable and rotatable support for said bed, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDWARD HAYES.

WVitnesses:

J AS. H. CHURCHILL, J. MURPHY. 

